Improvement in corn-shellers



DAVID G. WELLS, OF JOLIE'I, ILLINOIS.

IMPROVEMENT IN CORN-SHELLERS.

Specification forming part of Letters Patent No. 122,749, dated January16, 1872.

Specification describing certain Improvements in Gorn-Shellcrs, inventedby DAVID Gr. WELLS, of Joliet, Will county, and State of Illinois.

them reliable and durable, and reduce their cost of manufacture;secondly, to the mode of constructing the shaker-screen, so that itshall bc light, yet strong and durable.

In the accompanying drawing, Fig. l is a side elevation of the sheller,with the front side removed in order to show the internal construction.Fig. 2 shows that end of the machine which is at the right hand in Fig.l. Fig. 3 is a plan; and Fig. 4L is the same, with the cover removed toshow the parts below. Figs. 5, 6, 7, 8, 9, and l0 refer to details ofthe machine.

A A is the frame of the machine, and B the cover. C is the throatthrough which the corn to be shelled is fed into the machine. The ilange of this throat rests upon the cover B and is connected by its rear orlower edge to the flexible plate D by two adjusting-bolts, e e, passingthrough slotted holes d and y in the flange and plate, which serve tohold the throat C in its proper position, as shown in Fig. 3 of thedrawing. The plate D acts as a spring to the throat G, with its tongue Himparting to it a vibratory motion when the machine is Vbeing operated.The general shape of this plate and flange is more fully shown in Figs.5 and 6. The plate D is made of sheet-steel of suiiicient thickness topossess the necessary elasticity, which may be increased or diminishedby changing the position of the adjusting-bolts which secure it to thethroat C.

Vthe action of the grain.

.- out with the cobs.

The shaker-screen i is used for separating the corn from the cobs afterit is shelled. It is made with sheet-iron sides and round ironcross-bars. A row of holes is punched through the sides near one edge toreceive the crossbars. The sides are then folded lengthwise so as topresent a thickness of metal opposite each hole, which prevents thecross-bars from moving endwise in the holes, as shown in Fig. 8, whichis a cross-section on the line w y. About every sixth bar extendsthrough both thicknesses of metal and is securely riveted, which holdsthe whole iirmly together. It is desirable that the shaker-screen bemade Wholly of iron, as Wooden sides are soon Worn away by It is alsodesirable that they be as light as possible consistent with strength, asa heavy shaker-screen absorbs more power and racks the machine more thana light one. These desirable qualities are obtained by this mode ofconstructing the shakerscreen. It is suspended by links j lc in theusual way, or by a strip of steel, a, Figs. 9 and 10, which also acts asa spring. It is worked by a cam, l, on the shaft of the dish-wheel u.The corn is prevented from going out with the cobs by the screens p p.The partition-plate r prevents the picker-wheel from carrying the corn`The blower o is driven by a belt from the periphery of the ily-wheel w.

I claim as my inventionl. The combination of the iiexible or springplateD and throat C, substantially as and for the purpose hereinbefore setforth.

2. The shaker-screen i, constructed as described, and for the purposehereinbefore set forth.

Witnesses: DAVID G. WELLS.

M. HAND, JAMES B. SPEER.

